Mold



Match 1925.

1,530,308 N. J. DE BAS MOLD Filed March 1, 1922 2' Sheets-Sheet 1 3 nunMom M GHQ: M1214 March 17, 1925. 1,530,308

w. J. DE BAs MOLD Filed Ma rch 1 1922 2 Sheets- Sheet 2 Patented Mar.17, 1925.

UNITED STATES WILLEM JACOBUS DE BAS, OF THE HAGUE, NETHERLANDS.

MOLD.

Application filed March 1, 1922. Serial No. 540,221.

To all whom it may concern:

Be it known that I, WVILLEM JAcoBUs DE BAS, manufacturer, residing atThe Hague, Kingdom of the Netherlands, have invented certain new anduseful Improvements in Molds, of which the following is a specification.

In my original Patent, #1390244, for process of producing artificialstone, animproved mold for carrying out such process is set forth. Thepresent application is intended to set forth and claim the moldstructure.

Below two modifications of the improved mold are referred to, either ofwhich may be employed to carry out the process claimed in the abovementioned patent.

On the drawings:

Figure 1 is a top plan view showing the mold in closed. or pressengaging position,

Fig. 2 is a top plan View showing the mold in open position,

Fig. 3 is a. longitudinal section on line 33 of Fig. 1,

Fig. e is a similar view showing the mold in open position,

Fig. 5 is a section on line 5-5 of Fig. 1,

Fig. 6 is a detail of the bottom plate, and

Fig. 7 is a longitudinal section showing a slightly modified form of theinvention.

1 represents the cradle on which rests the mechanical compression moldand which can be moved into the press by means of rollers 2.

3 represents the side walls of the mold forming a frame. This frame canbe turned about the shaft 5 by means of the stirrup or lever A. 6indicates the bottom plate ofthe compression mold which has holes 7 thatlie opposite to the openings 8 arranged in the bottom of the cradle 1.

Numeral 9 is a. covering plate covering the Wall in the mold, while 10is a press. Numeral 11 indicates springs suitably tensioned for thepurpose of holding the plate 9 in place. A press plunger 12 is suitablypositioned and a glass plate 18 is placed, as clearly shown in Fig. 4E.Covering the bottom plate 6 is a. yielding auxiliary surface 14. whichis impervious to air.

The operation of the device is as follows:

A yielding surface plate 1 1 is placed over the bottom plate 6 and isclamped down by the frame 3. Mortar or cement which is used to formartificial stone is placed in mold formed by the frame 3 and theyielding surface 14. This mold is then run on track ways and into apress 10 and during this process coloring matter is added to form veins.After the material has gone through this process lever 4 is actuated andmaterial may be put through other processes, such as grinding,polishing, etc. I

It must be understood that only apreferred embodiment of my invention isherein shown and described and that any departure from the same, such asin shape, size or arrangement of parts may be resorted to withoutdeparting from the spirit of the invention or from the spirit or scopeof the subjoined claims.

Having thus described my invention, what I claim is:

A mold comprising side walls forming a frame, a shaft at each end of thesaid frame, sets of flanged wheels journalled on said shaft, alongitudinal extension from said frame, said extension being adapted tothrow said frame to an inverted position using one set of flanged wheelsas a pivot.

' WILLEM JACOBUS DE BAS.

